Sam Adams Letter (Original microfilm): https://www.masshist.org/collection-guides/digitized/fa0306/b01-i013#1 Warren-Adams Letters (1917 Transcription): https://archive.org/details/warrenadamslette7211mass/page/14/mode/2up Research Notes/Bibliography can be found here: https://publish.obsidian.md/s2underground Common Intelligence Picture: https://www.arcgis.com/home/item.html?id=204a59b01f4443cd96718796fd102c00 Border Crisis Map: https://www.arcgis.com/home/item.html?i...